[Elecraft] K2 drift

[Bernie KF0QS]

Don:

I'm assuming I can order these from Elecraft, using the part numbers 
out of the manual?

I am curious about how Q24 would affect things on receive?  Pg. 115 
of the manual says it is only active on transmit.

Thanks.

Bernie

At 04:42 PM 4/12/2015, you wrote:
>Bernie, I would first check the soldering - don't forget the thin 
>wire leads of L33. If that is not effective, I would order new BFO 
>crystals, a new Q24, and L33 - if you cannot salvage the 1/8 watt 
>resistor and bumper stem, order BFOMDKT instead of L33. I would 
>suggest replacing all of them to shorten the troubleshooting work 
>unless you are dead set on discovering the exact source of the 
>problem, which could take a substantial amount of time. In rare 
>cases, a capacitor could be changing value, so give thought to also 
>ordering a replacement C173, C174 and C169 unless you have a well 
>stocked junkbox. 73, Don W3FPR On 4/12/2015 5:25 PM, Bernie KF0QS wrote:
> > Don: > > Would you suggest I replace Q24, or should I just check 
> the solder? > > Thanks for the help. > > Bernie > > At 05:41 AM 
> 4/12/2015, you wrote: >> Bernie, Since the pitch changed that says 
> the BFO is the problem >> (not the VFO).   I repaired one recently 
> where Q24 was the real >> culprit causing the BFO to shift 
> frequency. 73, Don W3FPR On >> 4/12/2015 2:15 AM, Bernie KF0QS 
> wrote: >>> Don: > > When I switch to a filter, I can't hear the 
> signal I had >> centered in > the passband.  I can only hear the 
> signal if I tune >> about 1 khz down, > and then I do hear the 
> signal, albeit very low >> in pitch as opposed to > the pitch I 
> heard before I switched in the >> filter. > > Given that, I suppose 
> it sounds like the VFO is the problem? > > >> 
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